1444140454 has 8 divisors (see below), whose sum is σ = 2166372000. Its totient is φ = 722016456.

The previous prime is 1444140421. The next prime is 1444140469. The reversal of 1444140454 is 4540414441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1444140454² = 4171083301758652232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38112 + ... + 65884.

It is an arithmetic number, because the mean of its divisors is an integer number (270796500).

Almost surely, 2^1444140454 is an apocalyptic number.

1444140454 is a deficient number, since it is larger than the sum of its proper divisors (722231546).

1444140454 is a wasteful number, since it uses less digits than its factorization.

1444140454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53774.

The product of its (nonzero) digits is 20480, while the sum is 31.

The square root of 1444140454 is about 38001.8480340101. The cubic root of 1444140454 is about 1130.3245090918.

Adding to 1444140454 its reverse (4540414441), we get a palindrome (5984554895).

The spelling of 1444140454 in words is "one billion, four hundred forty-four million, one hundred forty thousand, four hundred fifty-four".